IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 26 January 2010   (all times are UTC)

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00:56
<tyoc213>
Hi there, Im new to this using ubuntu 9.10. So anyone know a nice tutorial or howto for setup my rdp server with ltsp?
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00:59
<tyoc213>
and what is the porpuose of sudo ltsp-build-client ?
01:03
<johnny>
!docs
01:03
<ltspbot`>
johnny: "docs" :: For the most current documentation, see https://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_LtspDocumentationUpstream
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02:09
<gnunux>
hi
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03:24
<nyu_>
hi
03:25
I want to setup a menu launcher on LTSP, similar to the one in ThinStation. I'm evaluating the following options: 1) .xsession magic with *DM session selection, 2) custom script using dialog/zenity/whatever, 3) port the launcher for ThinStation over
03:26
any suggestion? is there a better approach?
03:28
<Appiah>
what's a menu launcher?
03:29
<nyu_>
Appiah: an application / setup to display a number of options to the user (e.g. rdesktop, NX client, etc)
03:29
<Appiah>
before entering the desktop?
03:30
<nyu_>
there wouldnt be any standalone desktop
03:31
<Appiah>
so
03:31
<nyu_>
just remote login
03:31
<Appiah>
LDM launches , you login , then you get to choose
03:31
or LDM launches you get to choose , then login
03:31
<nyu_>
I'd rather run it entirely in the client
03:32
I don't want clients to login into the server, just to mount the filesystem readonly
03:32
is there no cooked up solution to this?
03:33
it doesn't seem so rare that I'm the only one who wants it
03:33
<Appiah>
does not sound like LTSP to me
03:33
<nyu_>
LTSP suits well for most of it, as it provides a base rescue system to run things from
03:42
<Appiah>
you could always search the mailinglist
03:53
<ogra>
Appiah, i think he means something pre-ldm where you can select the session type (ldm/rdesktop/telnet/whatever)
03:53
<Appiah>
yes I understand that now :D
03:54
kind of like how softwares that are provided on thin clients
03:54
where you can add Citrix and/or MS TS
03:56
oh btw nyu_
03:57
<nyu_>
ogra: yes
03:57
<Appiah>
when people wan to be able to choose between rdesktop and normal they edit lts.conf
03:57
with scree_0#=
03:57
screen*
03:57
<ogra>
nyu_, i'm sure that would be an appreciated (optional) feature
03:57
<nyu_>
done that, but I need a friendlier user interface than "press CTRL-ALT-F2"
03:57
<Appiah>
so thats how people usally do things
03:58
<nyu_>
can I run arbitrary commands in lts.conf / SCREEN_XX entries?
03:58
they seem to want a specific setting among rdesktop, shell, etc
03:59
<ogra>
you could write a screen script that brings up a menu and then executes the other screen scripts based on the selection i bet
04:00
<Appiah>
many ways to approach this :D
04:01
Been thinkin of similar when I was gonna put in spice-client
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04:50
<nyu_>
uhm I think GRUB can suit well for the menu selection
04:51
then I just need to pass this as a parameter in Linux cmdline
04:54
<Appiah>
:)
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05:43
<nyu_>
uhm
05:43
I take it you aren't supposed to regenerate initrd.img using update-initramfs ?
05:44
I just did that, and LTSP stopped booting
05:44
is some special magic required?
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05:51
<ogra>
did you run ltsp-update-kernels on the server afterwards ?
05:51
else your initrd doesnt end up in the tftp dir
06:00
<nyu_>
ogra: I copied it by hand
06:00
<ogra>
and you set the right links etc ?
06:02
<nyu_>
oh, silly me
06:02
looks like I copied the symlink instead
06:02
<ogra>
thats why we provide scripts that dont make mistakes ;)
06:04
<nyu_>
ah, well my setup is a little too customized for your scripts to work
06:04
maybe I can sort it out sometime
06:05
$boss wants something that works first ;-P
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06:11
<ogra>
and the default didnt work ?
06:20
<nyu_>
not to our requirements
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07:20
<tyoc213>
people, I really dont know how to configure ltsp (ubuntu 9.10) so I will really apreciate if there is a step by step tut for set it up?
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07:28
<Appiah>
what's the problem?
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07:28
<Appiah>
!docs
07:28
<ltspbot`>
Appiah: "docs" :: For the most current documentation, see https://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_LtspDocumentationUpstream
07:28
<Appiah>
https://help.ubuntu.com/community/UbuntuLTSP
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07:36
<tyoc213>
mmm, the problem is that I really dont know if some server will be started after I install a package like ltsp-server
07:38
and from https://help.ubuntu.com/community/UbuntuLTSP I dont know which one to read I mean there is no straigth forward info about configuring it, for example see https://help.ubuntu.com/community/UbuntuLTSP/LTSPQuickInstall Hardy Heron (8.04 that is a lot old isnt?
07:39
and I have installed via synaptic... I guess is a little diferent than install a server from startup... also dont know if that option is still available in 9.10 but I have already installed ltsp-*
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07:41
<tyoc213>
the info I have finded is normally for 8.04 or somewhat old... I have even finded some ltsp-package that aparently are not supported now (or have changed names perhaps)
07:45
<cliebow>
!docs
07:45
<ltspbot`>
cliebow: "docs" :: For the most current documentation, see https://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_LtspDocumentationUpstream
07:46
<cliebow>
tyoc213, ^^^^^
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07:48
<ogra>
tyoc213, https://help.ubuntu.com/community/UbuntuLTSP/LTSPQuickInstall say that from hardy on the design changed ... it applies to the current release
07:48
*says
07:48
note that link :) "get the Karmic Koala iso from http://releases.ubuntu.com/releases/9.10/"
07:50
<tyoc213>
OK today after work I will read the manual and see if I can do something
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07:51
<tyoc213>
I see...
07:52
I will try that later, now I g2g
07:53
mmm I have already try sudo ltsp-build-client but I got an error... that it was able to create it...
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07:53
<tyoc213>
now it says NOTE: Root directory /opt/ltsp/i386 already exists, this will lead to problems, please remove it before trying again. Exiting.
07:54
but I dont want to delete it because I remember that is has taked much time downloading things, there exist a way to reuse it?
07:55
<ogra>
see ltsp-build-client --extra-help
07:55
iirc there was an option
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08:00
<tyoc213>
sudo ltsp-build-client --purge-chroot ?
08:00
<ogra>
no
08:00
there is an option to re-use the servers package cache directory
08:02
though you will now have to redownload once again at least to get them into the *servers* packagecache
08:03
<tyoc213>
--copy-package-cache and then --mount-package-cache?
08:04
<ogra>
right, either of these
08:04
but note that all downloaded packages in the /opt dir are wiped at the end of ltsp-build-client anyway if you didnt use one of these options
08:04
so you can safely delete it now
08:05
and then do all new builds with --mount-package-cache ... that will keep them on the server
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08:13
<MRH2>
hi anyone seen an issue with remote X where click input from the mouse does not work and the cursor is a big L shape.
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08:25
<tyoc213>
ok, brb later
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08:40
<litlebuda>
hi all is it possible to burn a cd directly on the thin client cd drive ?
08:40
<ogra>
with localapps, yes
08:41
<litlebuda>
ogra quem you please point me out to where that info is . i cant seem to find it :( thnaks
08:41
* can
08:41
<ogra>
i doubt there is any
08:42
i was just commenting on the technical possibility :) you need to install some CD writing software in the client chroot, rebuild the image and should then be able to use the cd writing app as a localapp
08:43
<litlebuda>
well i have access to usbsticks and cd contents , but they are beiyng mounted at /media/username/cdrom
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08:45
<litlebuda>
ogra shouldn't they apear on the desktop ?
08:47
<alincoln>
anyone know where I can find the branch that has the add_mirrors problem fixed? I have latest upstream branch and ltsp-build-client dies because of this.
08:48
<ogra>
litlebuda, only if you use a distro and desktop that have ltspfs properly integrated
08:49
<litlebuda>
ogra xubuntu here !
08:49
should work no ?
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09:03
<Pod2>
is it possible to remotely reboot clients in ltsp 5? ltspinfo did it in 4.2
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09:23
<_UsUrPeR_>
hey, does anybody know of an lts.conf parameter for "Mic Boost" volume settings?
09:24
<sbalneav>
Pod2: I don't beleieve there's something built in directly, but I posted something to the mailing list about a year ago on how to do it.
09:24
<ogra>
_UsUrPeR_, i bet Gadi does
09:25
<alkisg>
!lts.conf
09:25
<ltspbot`>
alkisg: "lts.conf" :: http://manpages.ubuntu.com/lts.conf
09:26
<alkisg>
Hmmm only the volume is there, not the boost :(
09:26
<_UsUrPeR_>
yeah :/
09:26
I've been trying to get alsamixer to recall settings
09:26
and it has become a conundrum
09:26
because either way would be fine
09:28
<Gadi>
_UsUrPeR_: you might be able to get it
09:28
<Pod2>
sbalneav: thanks, I'll see if I can find it
09:28
<_UsUrPeR_>
gadi: I have attempted to make a script in chroot's init.d...
09:28
<Gadi>
what is the exact channel name for the mic boost (when you do: amixer scontrols |grep -i boost)
09:29
<_UsUrPeR_>
Gadi: there's two, and I'm not quite sure which is which. One is Front Mic Boost, the other is Mic Boost
09:30
<Gadi>
try: MIC_BOOST_VOLUME = "on"
09:30
and: FRONT_MIC_BOOST_VOLUME = "on"
09:30
(a little weird syntax, but the code *may* do the right thing
09:30
oh, no wait
09:31
I have a % in there
09:31
it won't work
09:31
we would need to add code to get it done
09:32
_UsUrPeR_: all your code needs to do is call: amixer -c0 sset 'Mic Boost',0 on
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09:32
<_UsUrPeR_>
Gadi: I just put the code in /usr/share/ltsp/xinitrc.d
09:32
is that a good place for it?
09:33
<Gadi>
if you put it there, it will set it every time X starts
09:33
<_UsUrPeR_>
good
09:33
that's what I want
09:33
<Gadi>
ok
09:33
<_UsUrPeR_>
on the local side, mind you
09:33
this is for a localapp
09:33
<Gadi>
preface it with: I*
09:34
<_UsUrPeR_>
ok
09:34
<Gadi>
and you should add a || true
09:34
in case it errors out
09:35
so: amixer -c0 sset 'Mic Boost',0 on || true
09:35
<_UsUrPeR_>
Gadi: ok :)
09:36
ok, now looking at the settings in amixer, they were already set to "0"
09:36
however, alsamixer claims that on restart they're set at max
09:36
or 100
09:36
or whatever
09:36
<Gadi>
note: the ,0 after the channel name is not the setting
09:37
<_UsUrPeR_>
ahhh~~~
09:37
<Gadi>
if you simply type: amixer
09:37
or amixer -c0
09:37
the settings are the last line(s) of each channel
09:40
<_UsUrPeR_>
huh. weird. both mic boosts do not have [on] next to them. How are they "on" then?
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09:47
<sbalneav>
_UsUrPeR_: if it's anything like my Audigy NX 2 USB sound card at home, there's no harware connection between the light, and the function. Basically, the light's something that can be turned on and off independent of the thing it's supposed to represent.
09:48
It's up to the driver to "turn on and off" the light when the function's turned on and off.
09:58
<_UsUrPeR_>
ahh. huh
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14:14
<vagrantc>
stgraber: eeyk. waiting forever is a bad idea on netcat ...
14:14
stgraber: if ldminfod is not installed/configured... ldm will never start.
14:14
<johnny>
that reminds me
14:15
why doesn't ldm return error messages :)
14:15
why must people look in the log
14:15
it'd be nice if ldm was more like the new gdm with a link to the log
14:15
<vagrantc>
johnny: because *you* haven't coded it yet? :P
14:16
<alincoln>
vagrantc: does the the add_mirror stuff in upstream work for you?
14:16
<vagrantc>
alincoln: yes
14:17
<alincoln>
vagrantc: i get errors with ltsp-build-client. i thought i saw something on here about a commit that wasn't quite right, and a fix was coming... or something
14:17
<vagrantc>
alincoln: what version of ltsp-server?
14:18
<alincoln>
vagrantc: well, what i'm really trying to do is learn how to use upstream's bzr. so i grabbed it, tried to package it, installed the .deb, and ltsp-build-client failed.
14:19
vagrantc: i'm new to debian packaging... i was trying to base it on your branches for packaging
14:19
maybe this was dumb :P
14:20
<vagrantc>
alincoln: there was one change in upstream that requires changes to packaging that i haven't yet pushed.
14:20
<alincoln>
vagrantc: the nbd-proxy stuff?
14:20
<vagrantc>
alincoln: no, the add_mirrors stuff
14:20
<alincoln>
ah, no wonder i couldn't get it to work, heh
14:21
it seems like the change to nbd-proxy caused stuff too.
14:21
<vagrantc>
nbd isn't used by default in debian, so i haven't really tested that
14:21
<alincoln>
gotcha.
14:21
<vagrantc>
but i really ought to...
14:21
<alincoln>
well, my motivation is that if i want to be developing, i really need to be doing it off upstream's bzr, right?
14:22
so i am trying to package it for this in particular
14:26
<sbalneav>
vagrantc: Oh, SNAP
14:26
:)
14:26
You're starting to sound like me! :)
14:26* sbalneav wipes a tear
14:26
<sbalneav>
<sniff> My little vagrant, all grown up now :)
14:27
johnny: heh, good idea. I'll put it on the list of things to do.
14:27
<johnny>
sbalneav, actually i was asking if there was a reason
14:27
if i really want to request that it should be done, i should file a ticket
14:28
<sbalneav>
Well, I think the idea to logging to syslog is so that if you enable remote syslog, then the admin can look on the server's log.
14:28
so, in short, LTSP 4.2 compatible.
14:28
<johnny>
of course it should still do that
14:29
<sbalneav>
but being able to just click on "View Log" somewhere on the login screen's a good idear too.
14:29
and shouldn't be too hard.
14:29
<johnny>
sbalneav, does the newer ubuntu's have that?
14:29
i know fedora does
14:29
<sbalneav>
just open up a textbox with the contents of /var/log/ldm.log in it.
14:29
<johnny>
it shows what happened with all the "Starting Services"
14:29
<sbalneav>
johnny: I think it's there, just not enabled by default.
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14:32
<stgraber>
vagrantc: it should just fail then, not wait forever (as inetd won't be accepting connections)
14:32
stgraber@castiana:~$ nc -q-1 10.145.1.1 1234
14:32
stgraber@castiana:~$ nc 10.145.1.1 1234
14:32
vagrantc: ^
14:32
I have nothing listening on 1234 obviously
14:33
<vagrantc>
stgraber: so what's it waiting for?
14:33
<stgraber>
data if the connect gets established
14:33
<vagrantc>
stgraber: as long as that scenario works, i guess i have no complains...
14:33
stgraber: what if it has something listening there, but it's some other service that never sends data?
14:33
<stgraber>
regular nc will wait for whatever the server returns, openbsd's nc doesn't
14:34
so it'll send the request but will return before it gets the response
14:34
vagrantc: never sends data would be fine as long as the connection gets closed
14:34
vagrantc: the only thing that'd hang is a service that won't close the connection
14:34
<vagrantc>
stgraber: and if it doesn't?
14:34
<stgraber>
well, then we'd be back to what we had before, as with regular nc
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14:35
<vagrantc>
really?
14:35
<stgraber>
yep
14:35
<vagrantc>
ok :)
14:35
<stgraber>
nc <someplace> 22
14:35
will never return
14:35
well, it'll after ssh timeouts
14:35
<vvinet>
a few minutes looks awefully like never
14:36
<mfdutra>
hello. is it possible to include an extra button in ldmgtkgreet through a theme, or someway else without chaning its code?
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14:37
<mfdutra>
s/chaning/changing/
14:37
<sbalneav>
mfdutra: Hey Marlon!
14:37
<mfdutra>
sbalneav, heeey
14:37
<sbalneav>
No, unfortunately :(
14:38
<mfdutra>
we already started the migration here
14:38
<sbalneav>
ldmgtkgreet's hardcoded, harcore.
14:38
<mfdutra>
is that "Preferences" button hard coded?
14:38
<sbalneav>
Everyone, Marlon's our friend in Brazil. He's got literally HUNDREDS of LTSP terminals an Unversity of the Northen Amazon :)
14:39
<mfdutra>
I guess it's about 2100 now
14:39
<sbalneav>
mfdutra: yeah. Did you want it removed?
14:39
2100?!
14:39
<mfdutra>
23,000 students
14:39
2100 thin clients
14:39
<sbalneav>
Holy Cr*p :)
14:39
<vagrantc>
thousands :)
14:39
<sbalneav>
I was thinking it was like 1200
14:39
<mfdutra>
no, it's ok there. I'd like to include a button for the user to jump windows TS, if he wants to
14:39
<sbalneav>
Just got my numbers reversed.
14:40
<mfdutra>
we have a ubuntu cluster and a windows cluster
14:40
they'll buy 250 new thin clients this week
14:41
I'm testing an atom 1.6 ghz with 1 gb ram
14:41
today, when the clients boot, I stop at a dialog script asking the user for windows or linux
14:41
the user hits enter and I either X -query or rdesktop
14:42
right before that all my cluster logic runs
14:42
that works perfectly
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14:42
<mfdutra>
I'm just wondering if I could just have a button on ldm for the user jump to windows. that's a way to influence the user to log in linux
14:42
<vagrantc>
mfdutra: could re-implement that as a wrapper screen script fairly easily
14:43
<mfdutra>
yes, indeed
14:43
but if I offer the user a linux/windows option with dialog, most users will choose windows
14:43
in a graphical fashion, I can have more influence in that decision
14:44
if ldm opens with focus on username/password, most users wouldn't even see the "windows button" and log directly in linux
14:44
we didn't have local apps here, so it was almost the same for me if the user was in windows or linux
14:44
now we're migrating to ltsp-5 with local apps, specially firefox
14:45
so I REALLY want users to use linux, but I cannot push them
14:45
it's a private university and they don't pay cheap to study here :)
14:45
<kaos01>
we have a single lab where all they can use is linux :)
14:45
no menu options
14:46
or you could also make the default selection linux, so unless they explicitly choose windows linux will boot
14:47
<vagrantc>
mfdutra: ah, i see. :)
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14:48
<kaos01>
im running ltsp5 with fedora12 using local devices, when i insert usb stick, the device and not the partition gets mounted
14:48
<mfdutra>
kaos01, that's what we do today, but most users still go for windows
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14:49* Gadi wrote this a while ago: http://pastebin.com/m29813afc
14:49
<Gadi>
ala lts.conf-configurable menu screen script thingie
14:50
well, thats a rough draft of one
14:51
<kaos01>
in LDM can one change the 'Username' text to somethign else ?
14:51
<mfdutra>
Gadi, that's what we do today
14:51
<Gadi>
mfdutra: ah
14:51
<mfdutra>
kaos01, it's translated here for me
14:51
with locales
14:51* Gadi figured
14:51
<kaos01>
i like to change the text though
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14:52
<kaos01>
so they know which usernames they need to use, as some think there are different ones around
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15:04
<vagrantc>
kaos01: i don't think there is currently a way to set that, but it wouldn't be hard to add.
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15:12
<Lns>
Hey all, this is probably a noob q, but has anyone gotten microphones working with localdev only (read: not localapps)? I'm running 'legacy' Ubu 8.04 ;)
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15:43
<johnny>
i would recommend upgrading Lns :)
15:43
lol
15:43
but really lucid is coming out soon enough i guess now
15:44
i don't see why mics wouldn't work tho
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15:44
<johnny>
Lns, my guess.. without looking.. is that you should examine the pulseaudio config
15:44
in the ltsp client setup
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15:52
<mfdutra>
my ltsp-cluster-lbserver.log is reporting an error: code 400, message Bad request syntax ('getkey')
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15:59
<Lns>
johnny, yeah, thx =) I figured as much, just am at home w/no LTSP term to test with. Kinda hit me when I remembered that PA is the awes ;)
16:00* Lns can't wait Lucid is out!
16:01
<johnny>
Lns, why don't you have a term at home?
16:02
or even just a vm pretending to me a term..
16:02
that's what i did
16:02
term as vm.. running on the server :)
16:02
fedora's default setup makes it easier than ubuntu's
16:02
via the virtual bridging interface
16:02
but i'm sure you can manage it..
16:03
Lns, i'm really waiting for the debonoboified evolution
16:03
altho really.. evo is not making me happy as a client..
16:03
i wish somebody would make something like evo.. just faster
16:03
and have more plugins..
16:06
<akuepker>
Gadi: It looks like we resolved the DHCP multi-IP/DDNS issue with the 'deny duplicates' and 'one-lease-per-client true' statements in dhcpd.conf.
16:08
<Lns>
johnny, sorry.. I do have a VM ltsp term, but it kinda makes it more difficult testing hardware when you've got that additional layer
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16:11
<tyoc213>
Hi there, doing sudo ltsp-build-client --mount-package-cache I get this error http://pastebin.com/d431fc5de
16:13
<vagrantc>
tyoc213: looks like it's including lots of extra packages in the debootstrap run...
16:13
<tyoc213>
Im on ubuntu 9.10
16:14
<vagrantc>
well, maybe i don't know what ubuntu's debootstrap includes by default ... but initramfs-tools and sgml-base seem a bit excessive.
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16:14
<tyoc213>
how can I correct this?
16:15
<vagrantc>
it looks like it actually eventually suceeded, though
16:15
<johnny>
Lns, sure.. but most things are testable with it..
16:16
not with any specific specs..
16:16
but testing with the mic works or cameras work
16:16
or usb sticks
16:16
sound
16:16
debugging local apps
16:16
you can do most things with it..
16:16
<vagrantc>
tyoc213: looks like the mirror you tried to download from failed for some reason... possibly brief network downtime at the wrong moment... maybe a broken transparent proxy...
16:17
<Lns>
johnny, well i was going to have to head down to the office in a bit anyway...but you're giving me more confidence regarding doing stuff like that =)
16:17
<vagrantc>
tyoc213: it doesn't have the appropriate versions of some of the software you're trying to install
16:18
<tyoc213>
mmmm I see
16:18
so I need to configure something I guess
16:20
<sbalneav>
Back on tonight.
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16:49thomas is now known as Guest78845
16:49
<Guest78845>
Hi I am trying to experience the limits of video streaming over 100Mps LAN.
16:49
Here is what I did. Server = AMD ATHLON X2 3800+ and thin client = thinkpad T40 laptop; connected via 100Mbps lan.
16:49
I installed locally on the thin-client: xbmc, vlc, firefox, mplayer after finding out that non locally installed video players lead to very choppy video performance.
16:49
The following to configurations seem to lead to smooth video performance (NOT h264 encoded!):
16:49
1) ltsp local mplayer playing nfs mounted video files from the server
16:49
2) using mediatomb on the server and vlc on the client via upnp
16:49
However for h.264 video both approaches are not good -> choppy video.
16:49
Therefore I tried a third. On the fly transcoding to mpeg2 with mediatomb with ffmpeg. This improves video streaming performance, but leads to 99% singe CPU usage on the server and 99% CPU usage on the thin client.
16:49
Question: How can I further improve the h.264 video streaming experience in a thin client cluster using ubuntu 9.10 ? Would a gigabyte LAN help?
16:50
Please advice.
16:51
Hello, someone active?
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16:55
<Guest78845>
Hello
16:57
<akuepker>
sorry, never been a focus for us. Ours are office PCs.
16:58
<Guest78845>
so video streaming is not of interest in an ltsp environment?
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17:02
<Guest78845>
no one has experience with video streaming over LAN?
17:05
<johnny>
nobody who is here now i guess
17:05
this is not an active time for this channel
17:06
after 5PM EST.. it is not active often
17:06
unless you get lucky
17:06
so.. try back tomorrow.. but a few hours earlier..
17:07
<Guest78845>
ok, thanks for the info. Will try tomorrow then.
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22:28
<sbalneav>
Yawn
22:28
To sleep. perchance to dream.
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